国家自然科学基金项目No.51309142,No.51679127,No.51439003;防灾减灾湖北省重点实验室三峡大学开放研究基金项目No.2016KJZ15.This work was supported by the National Natural Science Foundation of China51309142,51679127,51439003 and the Open Research Foundation of Hubei Key Laboratory of Disaster Prevention and Mitigation in China Three Gorges University2016KJZ15.